Decorative LED lightbulb structure



FIG. 1 is a perspective view of a decorative LED lightbulb structure showing my new design;

FIG. 2 is a side view of the decorative LED lightbulb structure thereof;

FIG. 3 is a top view of the decorative LED lightbulb structure thereof; and,

FIG. 4 is a bottom view of the decorative LED lightbulb structure thereof.

The broken lines shown on the drawings depict environment and form no part of the claimed design. 

CLAIM I claim the ornamental design for a decorative LED lightbulb structure, as shown and described. 